AXIAL OUTPUT DISTRIBUTION CALCULATING METHOD USING VIRTUAL NUCLEAR MEASURING INSTRUMENT ON CORE MONITORING SYSTEM

摘要

PURPOSE: An axial output distribution calculating method by using a virtual nuclear measuring instrument on the core monitoring system is provided to improve the margin of operation by reducing an axial output distribution error. CONSTITUTION: The axial output distribution calculating method includes the steps of setting the virtual incore nuclear measuring instrument, deriving the optimal correlation between the outputs of the existing real five nuclear measuring instruments and the outputs of the virtual nine nuclear measuring instruments, estimating the outputs of the virtual nine nuclear measuring instruments, calculating the 40 or 20 axial outputs by calculating the coefficients of the Fourier functions constructed by nine modes by using the estimated outputs.